Since \(a=e\rho \)  and \(\rho \in S(M^{-4},G)\)  for \(t\in [0,M^{-4}]\)  then for any \({\bar{\epsilon }}>0\)  there is \(M_0\)  such that \(CM_0^{-4}\le {\bar{\epsilon }}\) . Then the assertion follows from [1]}.
